This weekend I tried to turn on the furnace and it would not light. The blower worked but no igniter sound. I took the furnace out and checked to see if anything was dirty and not making contact but didnít really see any problems. I put it back together and tried it again and still no go. I tapped the top of the furnace and the igniter sound started and the furnace lit.
Has anyone ever had this trouble before. I am thinking itís a sticky sail switch but not 100%.